Setting up logging

[sihui]

Logging Issue

agree w @guessed re the import. I use multiple logs for different zones in my house. So I have defined both an appender and a logger for each of those. For brevity, only a couple of examples. The appender sets the log file name, entry formatting and retention policy. Note that the logger references a specific appender to do its work and says to which (very loosely speaking) openhab logging “domain” the logger applies. In my case the “modules” are the log references files for each of the…